linux-kernel - [PATCH libata/for-4.17-fixes] libata: Blacklist some Sandisk SSDs for NCQ

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Message-ID: <20180508212922.GM2368884@devbig577.frc2.facebook.com>
Date:   Tue, 8 May 2018 14:30:36 -0700
From:   Tejun Heo <tj@...nel.org>
To:     linux-ide@...r.kernel.org
Cc:     Dave Jones <davej@...emonkey.org.uk>, kernel-team@...com,
        linux-kernel@...r.kernel.org
Subject: [PATCH libata/for-4.17-fixes] libata: Blacklist some Sandisk SSDs
 for NCQ

>From 322579dcc865b94b47345ad1b6002ad167f85405 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@...nel.org>
Date: Tue, 8 May 2018 14:21:56 -0700

Sandisk SSDs SD7SN6S256G and SD8SN8U256G are regularly locking up
regularly under sustained moderate load with NCQ enabled.  Blacklist
for now.

Signed-off-by: Tejun Heo <tj@...nel.org>
Reported-by: Dave Jones <davej@...emonkey.org.uk>
Cc: stable@...r.kernel.org
---
Applied to libata/for-4.17-fixes.

 drivers/ata/libata-core.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 68596bd4..a2498f5 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4493,6 +4493,10 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 	/* https://bugzilla.kernel.org/show_bug.cgi?id=15573 */
 	{ "C300-CTFDDAC128MAG",	"0001",		ATA_HORKAGE_NONCQ, },
 
+	/* Some Sandisk SSDs lock up hard with NCQ enabled.  Reported on
+	   SD7SN6S256G and SD8SN8U256G */
+	{ "SanDisk SD[78]SN*G",	NULL,		ATA_HORKAGE_NONCQ, },
+
 	/* devices which puke on READ_NATIVE_MAX */
 	{ "HDS724040KLSA80",	"KFAOA20N",	ATA_HORKAGE_BROKEN_HPA, },
 	{ "WDC WD3200JD-00KLB0", "WD-WCAMR1130137", ATA_HORKAGE_BROKEN_HPA },
-- 
2.9.5